Mean Tweets on Jimmy Kimmel Live is a long-running segment with a simple premise
For those who don't know, a bunch of celebrities read out the mean things people have said about them on Twitter.
Jimmy Kimmel's show has been featuring a bunch of skits with the cast of Avengers: Infinity War, so naturally he got them to jump on the Mean Tweets bandwagon.
Some of them, are particularly harsh - like one tweet to Chris Evans (aka Captain America) which reads:
"Perhaps Chris Evans is in truth a great actor but he plays Captain America like he's a big dumb hunk of s**t."
Harsh. Yet still kind of funny.
The segment is so popular, even Irish celeb Bosco has taken part in it.